TSC5802DCP ROG Equivalent & Substitute Parts

Part Overview

The TSC5802DCP ROG is an NPN bipolar junction transistor manufactured by Taiwan Semiconductor Corporation, designed for general-purpose switching and amplification applications. This component operates at a maximum collector-emitter breakdown voltage of 450 V with a maximum collector current of 2.5 A and a power dissipation rating of 30 W in a surface mount TO-252 (DPAK) package.

The TSC5802DCP ROG is classified as obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this transistor.

Substiute Parts

TSC5802DCP ROG

Taiwan Semiconductor CorporationIn Stock: 947TSC5802DCP ROG Datasheet

Current PartRFQ

BULD741T4

STMicroelectronicsIn Stock: 5343BULD741T4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSC5802DCP ROG is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor type must be NPN
• Maximum collector current (Ic) must be equal to or greater than 2.5 A
• Maximum collector-emitter breakdown voltage (Vce(BR)CEO) must be equal to or greater than 450 V
• Maximum power dissipation must be equal to or greater than 30 W
• Operating temperature range must support 150°C junction temperature

Mechanical Compatibility Criteria:

• Package type must be TO-252-3 (DPAK) with 2 leads plus tab configuration
• Surface mount mounting type

Compliance Criteria:

• RoHS3 compliance required
• REACH unaffected status required

The BULD741T4 manufactured by STMicroelectronics meets the mechanical and compliance requirements. However, the maximum collector-emitter breakdown voltage of 400 V is below the 450 V specification of the main part. This represents a voltage derating of 50 V and must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

The BULD741T4 is an active product manufactured by STMicroelectronics and represents a viable substitute for the obsolete TSC5802DCP ROG in applications where the reduced maximum collector-emitter breakdown voltage of 400 V is acceptable within the circuit design margins.

Substitution Feasibility:

The BULD741T4 maintains electrical compatibility in collector current (2.5 A maximum), power dissipation (30 W), operating temperature (150°C junction temperature), and mechanical package configuration (TO-252-3 DPAK). Both components are RoHS3 compliant and REACH unaffected.

Voltage Rating Consideration:

The primary electrical difference is the maximum collector-emitter breakdown voltage. The TSC5802DCP ROG is rated at 450 V, while the BULD741T4 is rated at 400 V. This 50 V difference must be evaluated against the maximum operating voltage in the target application. If the application operates at voltages exceeding 400 V, the BULD741T4 is not suitable.

Additional Advantages:

The BULD741T4 exhibits a lower saturation voltage (1.5 V versus 3 V at the specified test conditions), which may reduce power dissipation in switching applications. The BULD741T4 also carries a lower moisture sensitivity level (MSL 1 versus MSL 3), providing improved handling and storage characteristics.

Supply Availability:

The BULD741T4 is currently in active production with 5,300 pieces in stock, compared to the obsolete status of the TSC5802DCP ROG with 861 pieces remaining in inventory.

Frequently Asked Questions (FAQ)

Q: Can the BULD741T4 directly replace the TSC5802DCP ROG in all applications?

A: The BULD741T4 is mechanically and electrically compatible in most parameters. However, the 50 V reduction in maximum collector-emitter breakdown voltage (400 V versus 450 V) must be verified against the application's maximum operating voltage. If the circuit operates below 400 V, direct substitution is feasible. If the circuit requires 450 V rating, the BULD741T4 is not suitable.

Q: Are the packages identical?

A: Yes. Both the TSC5802DCP ROG and BULD741T4 use the TO-252-3 (DPAK) package with 2 leads plus tab configuration. Pin-to-pin compatibility is confirmed, and no PCB layout modifications are required.

Q: What is the difference in saturation voltage between these parts?

A: The TSC5802DCP ROG has a maximum saturation voltage of 3 V at 600 mA base current and 2 A collector current. The BULD741T4 has a maximum saturation voltage of 1.5 V at the same test conditions. The lower saturation voltage of the BULD741T4 results in reduced power dissipation during saturation operation.

Q: Are both parts RoHS compliant?

A: Yes. Both the TSC5802DCP ROG and BULD741T4 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of the different moisture sensitivity levels?

A: The TSC5802DCP ROG carries MSL 3 (168 hours), while the BULD741T4 carries MSL 1 (unlimited). MSL 1 indicates superior moisture resistance and allows for longer shelf life and more flexible handling conditions without baking requirements. The BULD741T4 offers improved storage and logistics advantages.

Q: What is the difference in DC current gain specifications?

A: The specifications are measured at different test conditions. The TSC5802DCP ROG specifies a minimum hFE of 50 at 100 mA collector current and 5 V collector-emitter voltage. The BULD741T4 specifies a minimum hFE of 25 at 450 mA collector current and 3 V collector-emitter voltage. Direct comparison requires evaluation at identical operating points within the target application.

Q: Is the BULD741T4 suitable for high-voltage switching applications?

A: The BULD741T4 is rated for a maximum collector-emitter breakdown voltage of 400 V. Applications requiring operation at or near 450 V must use a component with a 450 V or higher rating. For applications operating below 400 V, the BULD741T4 is suitable for high-voltage switching.

Q: What is the current availability status of each part?

A: The TSC5802DCP ROG is obsolete with 861 pieces remaining in stock. The BULD741T4 is an active product with 5,300 pieces in stock, ensuring long-term availability and supply chain continuity.